<!DOCTYPE html>
<html lang="en">
<head>
    <meta charset="UTF-8">
    <meta name="viewport" content="width=device-width, initial-scale=1.0">
    <title>帅哥美女走一走</title>
</head>
<body>
    <div id="app">
        <ul>

            <li v-for="(item,index) in list" :key="item.id"  >
                <span>{{item.name}}</span>

            </li>
        </ul>
        <button @click="btn" >走一走</button>

    </div>

    <script src="https://cdn.jsdelivr.net/npm/vue@2.7.16/dist/vue.js"></script>


    <script>
        const app = new Vue({

            el:'#app',
            data:{
                list:[
                    {id:1,name:'帅哥'},
                    {id:2,name:'美女'},
                    {id:3,name:'程序猿'},
                ]
            },
            methods:{
                btn(){
                   this.list.push (this.list.shift())
                }
            }
        })


    </script>


    
</body>
</html>